Car-brake



(ModeL) L. D. DAWLEY & A. R. SPAULDING.

CAR BRAKE.

No. 262,378. Patented Aug. 8, 1882.

WITNESSES INVENTOR N. PEYERS, Pmwumn n nu, wmmgnm, o. c.

UNITED STATES PATENT @FFiCEe LAFAYETTE D. DAWLEY, OF ADA, AND ADDISON R.SPAULDING, OF LAKE CITY, MINNESOTA.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 262,378, dated August8, 1882.

Application filed May 17, 18852.

To all whom at may concern Be it known that we, LAFAYETTE D. DAW- LEY,of Ada, in the county of Norman and State of Minnesota, and ADDISON R.SPAUL- DING, of Lake City, in the county of Wabasha and State ofMinnesota, have invented a new and useful Improvement in Gar-Brakes, ofwhich the following is a full, clear, and exact description.

to Our invention relates to improvements in automatic car-brakes; and itconsists in the pcculiar construction and arrangement of parts, ashereinafter more fully set forth.

Reference is to be had to the accompanying drawings, formingpart of thisspecification, in

which similar letters of reference indicate corresponding parts in allthe figures.

Figure lis a sectional elevation ofa railroadcar and trucks having ournew and improved momentum-brake applied thereto. Fig. 2 is an invertedplan view of the same; and Fig. 3 is an end elevation, partly insection, showing the-means for swinging the buffer out of line with thebuffer of the adjacent car. The body A and the trucks B B of the car maybe of any approved construction, and the cross pieces or bars 0 G, towhich the brakeshoes D D are attached, are of ordinary form, and aresuspended in the ordinary manner from the bottom of the car or from theframe of the truck by means of the chains, rods, or links 0 0. Upon thecross-piece O, in the center thereof, is pivoted the angle-plate orhousing E, which carries thebuffer-rod F and coiled or other spring G,placed upon the rod F. The outer end of this rod Fis enlarged to formthe buffer plate or head 0, and is provided within the housing E withthe adjustable collar e, for adjusting the tension of the spring G, andthe rod is held loosely in the said housing or plate, so that it isadapted to have longitudinal movement therein against the action of thesprin H is a lever attached at one end to the but- 4 5 fer-rod F, and ispivoted to the end or platform of the car, as shown at i, for swingingthe butfer-rod and housing-plate upon the pivot to (shown in Fig. 2) outof line with the center (ModeL) of the car, as shown in dotted lines inFigs. 2 and 3. Forholdinglever, buffer, rod ,andhous- 5o ing at anydesired position the bent ratchetbar J is provided, with the teeth ofwhich the spring plate or pawl j engages, as will be un; derstood fromFig. 3. Leading from the crossbar (J is the connecting-rod M.

To the centerpiece, K, of the truck B isattached the hanger L, in whichthe angle-plate or housing E is held so as to be adapted to havelongitudinal movement. This plate or housing is precisely similar inconstruction to the plate E. It holds loosely the outer end of theconnecting-rod M and the coiled or other spring G placed upon the rodthe same as the housing E holds the buffer-rod F, except that the plateE is riveted and is adapted to move upon the rod M against the tensionof the spring G, whereas the plate E is held rigid againstall'longitudinal movement. The tension of the spring G is adjustablebymeans of the collarf, placed upon the rod.

Pivoted to the housing E is the bent bufferrod F, the outer end of whichis enlarged to form the buffer plate or head g, and is held by thepivoted lever H, which latter is in all respects like the lever H, andserves a like purpose of throwing the butter-rod F out of line with thecenter of the car, so that it will not come against the buffer of theadjacentcar, in which position the brakes will have no automatic action.

To the cross piece or barO is pivoted the ordinary brake-lever O, whichis connected with the cross-piece O by means of the connectingrod P, andwith the hand-wheel Q by means of the rod, chain, or similar connect-ionR, for applying the brakes in the ordinary manner when the automatic ormomentum mechanism for applying the brakes is out of action or when notsufficient to control the train.

l/Vhen the automatic or momentum mechan- 9o ism for applying the brakesis arranged for operation, which is done by bringing the buffers bymeans of the lever H or H in line with the center of the car, so thatthe heads of the buffers throughout the train will come together whenthe speed of the train is retarded by slackening the speed of theengine, the bufferrods will crowd against each other and be forcedforward and rearward against the springs G G by the pressure ot'thebutler-rods against each other, due to the momentum of the cars, andthus will force the cross piece or bars 0 and 0 toward the wheels of thetruck and automatically apply the brakes.

Vhen the bufl'ers are thrown out ofline by o ierating the lever H or Hit will be understood that the ears may be drawn in any directionwithout operating the brakes, and it will be understood that thebufier-rods must be a littlelonger than the draw-heads and ordinarybuffers of the cars, so that they will have sufficient backward andforward movement for applying the brakes, and instead of using theadjustable springs on the butter-rods other meehanismsuch as levers,cranks, eccentric-may be used and not depart from the spirit of ourinvention.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is

1. The combination, with the erosspieeesO O, of the bufl'er-rods F F andplates or housings E E with the springs G G, substantially as described.

2. 'lheeombination ot the cross-pieces O U of" the buffer-rods F F, theplates or housing 0 E E, the springs G G, and the levers H H forthrowing the buffer-rod out of line, substantially as shown anddescribed.

3. The combination, with the lever H, pivoted to the end of the car, andthe crossbar 5 G, of the plate-housing E, pivoted to the bar U, thebutter-rod F, provided with the head 0, the spring G, and theadjusting-collar 0, substantially as and for the purpose set forth.

LAFAYETTE 1 DALEY. ADDISO) 1t. SPAULDING.

itnesses to Lafayette 1). Dawleys signa ture:

H. M. HUNTING, D. S. WEs'r. lVitnesses to Addison R. Spauldingssignature:

E. M. CARD,

toB'r.

